lesson 4_1.lst

有51单片机C语言基础后在较短时间内学会51单片机C。

C51 COMPILER V8.05a   LESSON_4_1                                                           02/02/2009 18:05:55 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE LESSON_4_1
OBJECT MODULE PLACED IN lesson 4_1.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE lesson 4_1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #include<intrins.h>
   3          #define uint unsigned int
   4          #define uchar unsigned char
   5          void delay(uint);
   6          void initial();
   7          sbit dula=P2^6;
   8          sbit wela=P2^7;
   9          uchar temp,num,t;    //定义全局变量
  10          uchar code table[]={    //共阴极LED显示列表数据
  11          0x3f,0x06,0x5b,0x4f,
  12          0x66,0x6d,0x7d,0x07,
  13          0x7f,0x6f,0x77,0x7c,
  14          0x39,0x5e,0x79,0x71};
  15          void main()
  16          {
  17   1              t=0;num=1;
  18   1          initial();    //中断初始化
  19   1      
  20   1              temp=0xfe;
  21   1              P1=temp;
  22   1      
  23   1              wela=1;           //开机显示0
  24   1              P0=0xc0;
  25   1              wela=0;
  26   1      
  27   1              dula=1;
  28   1              P0=0x3f;
  29   1              dula=0;
  30   1      
  31   1          while(1)
  32   1              {
  33   2                      temp=_crol_(temp,1);
  34   2                      P1=temp;
  35   2                      delay(500);
  36   2              }
  37   1      }
  38          
  39          void initial()
  40          {
  41   1              TMOD=0x01;                      //T0初始化
  42   1              TH0=(65536-50000)/256;
  43   1              TL0=(65536-50000)%256;
  44   1              EA=1;
  45   1              ET0=1;
  46   1              TR0=1;  
  47   1      }
  48          
  49          void T_0() interrupt 1
  50          {
  51   1              TH0=(65536-50000)/256;
  52   1              TL0=(65536-50000)%256;
  53   1              t++;
  54   1              if(t==20)
  55   1                      {
C51 COMPILER V8.05a   LESSON_4_1                                                           02/02/2009 18:05:55 PAGE 2   

  56   2                      dula=1;
  57   2                      P0=table[num];
  58   2                      dula=0;
  59   2                      t=0;
  60   2                      num++;
  61   2                      if(num>9)
  62   2                      num=0;                  
  63   2                      }
  64   1      }
  65          
  66          void delay(uint z)
  67          {
  68   1              uint x,y;
  69   1              for(x=z;x>0;x--)
  70   1                      for(y=100;y>0;y--);
  71   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    156    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)